package com.admin.web.controller.system;

import com.admin.common.core.controller.BaseController;
import com.admin.common.core.domain.AjaxResult;
import com.admin.common.utils.ServletUtils;
import com.admin.common.utils.StringUtils;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 登录验证
 *
 * @author fangchen
 */
@Controller
public class SysLoginController extends BaseController {
    @GetMapping("/login")
    public String login(HttpServletRequest request, HttpServletResponse response) {
        // 如果是Ajax请求，返回Json字符串。
        if (ServletUtils.isAjaxRequest( request )) {
            return ServletUtils.renderString( response, "{\"code\":\"1\",\"msg\":\"未登录或登录超时。请重新登录\"}" );
        }

        return "login";
    }

    @PostMapping("/login")
    @ResponseBody
    public AjaxResult ajaxLogin(String username, String password, Boolean rememberMe) {
        UsernamePasswordToken token = new UsernamePasswordToken( username, password, rememberMe );
        Subject subject = SecurityUtils.getSubject();
        try {
            subject.login( token );
            return success();
        } catch (AuthenticationException e) {
            String msg = "用户或密码错误";
            if (StringUtils.isNotEmpty( e.getMessage() )) {
                msg = e.getMessage();
            }
            return error( msg );
        }
    }

    @GetMapping("/unauth")
    public String unauth() {
        return "error/unauth";
    }
}
